Home / 3,116.61-4,301.27-1,790.29

Finding the Fourth Proportional to 3,116.61, 4,301.27 and 1,790.29

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Solution

The fourth proportional to 3,116.61, 4,301.27 and 1,790.29 is: 2,470.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,116.61 : 4,301.27 = 1,790.29 : x
  2. Step 2: Convert to fraction form
    3,116.61/4,301.27 = 1,790.29/x
  3. Step 3: Cross multiply
    3,116.61x = 4,301.27 × 1,790.29
  4. Step 4: Simplify right side
    3,116.61x = 7,700,520.67
  5. Step 5: Solve for x
    x = 7,700,520.67/3,116.61
  6. Step 6: Final answer
    x = 2,470.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.